MBRP 06-08 Ram Hemi 1500 Mega Cab 5.7L / 03-13 Ram Hemi 2500/3500 5.7L Alum 3in Cat Back Single SideOur high flow performance exhaust systems maximize exhaust flow so your engine keeps its cool with lower exhaust temperatures. Your reward will be greater fuel efficiency; more torque; more horsepower; and last but not least a sound that is pure MBRP. Installer Series Cat Back Exhaust System; 3 in.; Incl. Front Pipe Extension Pipe Muffler Over Axle Pipe Hardware 3. 5 in. OD Tip; Single Side Exit; Aluminized; 4" OD Tip Included